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Results of histological analysis after subcutaneous rat implantation with pure aliphatic polyester-based film specimens and these filled with neat and modified NCC: (a) the thickness of fibrous capsule, (b) and (c) the average number of collagen layers and blood capillaries, (d–h) the average number of different cells per 400× field, e.g. fibroblasts, macrophages, lymphocytes, neutrophiles, and giant multinucleated cells.
